342134021021 has 16 divisors (see below), whose sum is σ = 378652506624. Its totient is φ = 307083680064.

The previous prime is 342134020993. The next prime is 342134021029. The reversal of 342134021021 is 120120431243.

It is a cyclic number.

It is not a de Polignac number, because 342134021021 - 2⁶ = 342134020957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342134021029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526766 + ... + 980688.

It is an arithmetic number, because the mean of its divisors is an integer number (23665781664).

Almost surely, 2^342134021021 is an apocalyptic number.

It is an amenable number.

342134021021 is a deficient number, since it is larger than the sum of its proper divisors (36518485603).

342134021021 is a wasteful number, since it uses less digits than its factorization.

342134021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455540.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 342134021021 its reverse (120120431243), we get a palindrome (462254452264).

The spelling of 342134021021 in words is "three hundred forty-two billion, one hundred thirty-four million, twenty-one thousand, twenty-one".